arm64: dts: qcom: pm8916: Move default regulator "-supply"s

arm64: dts: qcom: pm8916: Move default regulator "-supply"s

Some of the power supplies for the analog audio codec in PM8916 are
wired externally. While most boards use the regulators currently
specified in pm8916.dtsi, in theory it could be connected differently.

We already have msm8916-pm8916.dtsi that models that standard setup
used by most devices so move the -supply properties there and keep
the base pm8916.dtsi independent.

Currently all MSM8916 boards in mainline make use of
msm8916-pm8916.dtsi, so it is not necessary to adjust any other boards.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230510-msm8916-regulators-v1-5-54d4960a05fc@gerhold.net